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Description of two species of free-living nematodes (Nematoda) from fresh waterbodies of Vietnam

  • Biology, Morphology, and Systematics of Hydrobionts
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Abstract

The new nematode species Monhystera longivaginata sp. n. and the rare species Mononchulus nodicaudatus (Daday, 1901) collected in waterbodies of Vietnam are described. M. longivaginata sp. n. is morphologically similar to M. paludicola de Man, 1881, but differs from it in a longer and slenderer tail in females, ocelli situated closer to the anterior end of the body, the presence of a postvulval gland cell, and a longer vagina. The genus Monhystera Bastian, 1865 is revised, and several species of this genus (M. lemani Juget, 1969, M. macramphus Filipjev, 1923, M. amabilis Gagarin, 1997, M. hamata Gagarin et Nguyen Vu Thanh, 2005, and M. melnikae Gagarin et Naumova, 2010) are transferred to the genus Eumonhystera Andrássy, 1981 as E. lemani (Juget, 1969) comb. nov., E. macramphus (Filipjev, 1929) comb. nov., E. amabilis (Gagarin, 1997) comb. nov., E. hamata (Gagarin et Nguyen Vu Thanh, 2005) comb. nov., and E. melnikae (Gagarin et Naumova, 2010) comb. nov.

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  1. Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, Nekouzskii raion, Yaroslavl oblast, 152742, Russia

    V. G. Gagarin & V. A. Gusakov

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  1. V. G. Gagarin
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  2. V. A. Gusakov
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Correspondence to V. G. Gagarin.

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Original Russian Text © V.G. Gagarin, V.A. Gusakov, 2013, published in Biologiya Vnutrennikh Vod, 2013, No. 4, pp. 13–20.

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Gagarin, V.G., Gusakov, V.A. Description of two species of free-living nematodes (Nematoda) from fresh waterbodies of Vietnam. Inland Water Biol 6, 268–275 (2013). https://doi.org/10.1134/S199508291304007X

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